Chromium when added to steel _________ the tensile strength.
Chromium when added to steel _________ the tensile strength.
Grey cast iron has
Grey cast iron has
Surveying tapes are made of a material having low coefficient of expansion and enough strength. The alloy used is
Surveying tapes are made of a material having low coefficient of expansion and enough strength. The alloy used is
The alloying element which reduces the formation of iron sulphide in steel is
The alloying element which reduces the formation of iron sulphide in steel is
Which of the following is used for bearing liner?
Which of the following is used for bearing liner?
Gun metal contains
Gun metal contains
A reversible change in the atomic structure of steel with corresponding change in the properties is known as
A reversible change in the atomic structure of steel with corresponding change in the properties is known as
Large forgings, crank shafts, axles normally contain carbon up to
Large forgings, crank shafts, axles normally contain carbon up to
Process of Austempering results in
Process of Austempering results in
Y-alloy contains
Y-alloy contains
The property of a material due to which it breaks with little permanent distortion, is called
The property of a material due to which it breaks with little permanent distortion, is called
Dow metal contains
Dow metal contains
Bronze is an alloy of
Bronze is an alloy of
The charge of the blast furnace consists of
The charge of the blast furnace consists of
In which of the following cases, consideration of creep is important
In which of the following cases, consideration of creep is important
Which of the following alloys does not have copper as one of the constituents?
Which of the following alloys does not have copper as one of the constituents?
The surface hardness of the following order is achieved by nitriding operation
The surface hardness of the following order is achieved by nitriding operation
White cast iron
White cast iron
Cemented carbide tools are not found to be suitable for cutting
Cemented carbide tools are not found to be suitable for cutting
Which is the false statement about wrought iron? It has
Which is the false statement about wrought iron? It has
Weld decay is the phenomenon found with
Weld decay is the phenomenon found with
White metal contains
White metal contains
The molecules in a solid move
The molecules in a solid move
An example of amorphous material is
An example of amorphous material is
Points of arrest for iron correspond to
Points of arrest for iron correspond to
Wrought iron is
Wrought iron is
A coarse grained steel
A coarse grained steel
Super conduction by metals is observed in the temperature range of
Super conduction by metals is observed in the temperature range of
Which of the following metal is used for nuclear energy?
Which of the following metal is used for nuclear energy?
Duralumin contains
Duralumin contains
The lower critical temperature
The lower critical temperature
Gamma iron exits at following temperature
Gamma iron exits at following temperature
In a hardening process, the hypo-eutectoid steel is
In a hardening process, the hypo-eutectoid steel is
Admiralty gun metal contains
Admiralty gun metal contains
Cast iron is manufactured in
Cast iron is manufactured in
Pearlite consists of
Pearlite consists of
The following element can't impart high strength at elevated temperature
The following element can't impart high strength at elevated temperature
Steel contains
Steel contains
Perminvar alloy having constant permeability is an alloy of
Perminvar alloy having constant permeability is an alloy of
Shock resisting steels should have
Shock resisting steels should have
The elastic stress strain behavior of rubber is
The elastic stress strain behavior of rubber is
Phosphor bronze contains
Phosphor bronze contains
Manganese is added in low carbon steel to
Manganese is added in low carbon steel to
Body centered cubic space lattice is found in
Body centered cubic space lattice is found in
-
-
-
-
Which of the following is an amorphous material?
Which of the following is an amorphous material?
Hardness of martensite is about
Hardness of martensite is about
The temperature at which ferromagnetic alpha iron transforms to paramagnetic alpha iron is
The temperature at which ferromagnetic alpha iron transforms to paramagnetic alpha iron is
Brass is an alloy of
Brass is an alloy of
Which is false statement about tempering? Tempering is done to
Which is false statement about tempering? Tempering is done to
Sulphur in cast iron
Sulphur in cast iron
The compressive strength of cast iron is __________that of its tensile strength.
The compressive strength of cast iron is __________that of its tensile strength.
Steel made from phosphate iron is
Steel made from phosphate iron is
Hardness of lower bainite (tempered martensite) is about
Hardness of lower bainite (tempered martensite) is about
When low carbon steel is heated up to upper critical temperature
When low carbon steel is heated up to upper critical temperature
Blast furnace is used to produce
Blast furnace is used to produce
An eutectoid steel consists of
An eutectoid steel consists of
Closed packed hexagonal space lattice is found in
Closed packed hexagonal space lattice is found in
-
-
-
-
Amorphous material is one
Amorphous material is one
In low carbon steels, ________ raises the yield point and improves the resistance to atmospheric corrosion.
In low carbon steels, ________ raises the yield point and improves the resistance to atmospheric corrosion.
Ball bearings are, usually, made from
Ball bearings are, usually, made from
The unit cells
The unit cells
Balls for ball bearings are made of
Balls for ball bearings are made of
Iron-carbon alloys containing 1.7 to 4.3% carbon are known as
Iron-carbon alloys containing 1.7 to 4.3% carbon are known as
Which of the following impurity in cast iron promotes graphite nodule formation and increases the fluidity of the molten metal?
Which of the following impurity in cast iron promotes graphite nodule formation and increases the fluidity of the molten metal?
The temperature required for full annealing in hypereutectoid steel is
The temperature required for full annealing in hypereutectoid steel is
Slow plastic deformation of metals under a constant stress is known as
Slow plastic deformation of metals under a constant stress is known as
The material in which the atoms are arranged regularly in some directions but not in others, is called
The material in which the atoms are arranged regularly in some directions but not in others, is called
Wrought iron
Wrought iron
The silicon steel is widely used for
The silicon steel is widely used for
The purpose of heat treatment is to
The purpose of heat treatment is to
A material is said to be allotropic, if it has
A material is said to be allotropic, if it has
Pig iron is the name given to
Pig iron is the name given to
In compression, a prism of brittle material will break
In compression, a prism of brittle material will break
In process annealing, the hypo eutectoid steel is
In process annealing, the hypo eutectoid steel is
Sulphur in steel
Sulphur in steel
Which of the following has a fine gold colour and is used for imitation jewellery?
Which of the following has a fine gold colour and is used for imitation jewellery?
Connecting rod is, usually, made from
Connecting rod is, usually, made from
The charge is fed into the blast furnace through the
The charge is fed into the blast furnace through the
Tungsten in steel
Tungsten in steel
A material is known as allotropic or polymorphic if it
A material is known as allotropic or polymorphic if it
Which of the following pipes is least corrosion resistant?
Which of the following pipes is least corrosion resistant?
Foundry crucible is made of
Foundry crucible is made of
When the steel is normalized, its
When the steel is normalized, its
Ferromagnetic alpha iron exists in temperature range of
Ferromagnetic alpha iron exists in temperature range of
Pipes for bicycle frames are made of
Pipes for bicycle frames are made of
Aluminium bronze contains aluminium and copper in the ratio of
Aluminium bronze contains aluminium and copper in the ratio of
A small percentage of boron is added to steel in order to
A small percentage of boron is added to steel in order to
The portion of the blast furnace below its widest cross-section is called
The portion of the blast furnace below its widest cross-section is called
The transistor is made of
The transistor is made of
White cast iron contains carbon in the form of
White cast iron contains carbon in the form of
Which of the following display properties similar to that of steel?
Which of the following display properties similar to that of steel?
Hardness of upper bainite (acicular structure) is about
Hardness of upper bainite (acicular structure) is about
Connecting rod is usually made of
Connecting rod is usually made of
Compressive strength of grey cast iron in tonnes/cm is of the order of
Compressive strength of grey cast iron in tonnes/cm is of the order of
A reversible change in the atomic structure of the steel with a corresponding change in the properties is known as
A reversible change in the atomic structure of the steel with a corresponding change in the properties is known as
The tensile strength of wrought iron is maximum
The tensile strength of wrought iron is maximum
The percentage of carbon in low carbon steel is
The percentage of carbon in low carbon steel is
When low carbon steel is heated up to lower critical temperature
When low carbon steel is heated up to lower critical temperature
The property of a material essential for spring materials is
The property of a material essential for spring materials is
Permalloy is a
Permalloy is a
